The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Apr. 19, 2005
Nien-hui Hsu, Miao-Li County, TW;
Yu-min Kuo, Miao-Li County, TW;
Wen-hsien Su, Miao-Li County, TW;
Shang-hsuang Wu, Miao-Li County, TW;
Nien-Hui Hsu, Miao-Li County, TW;
Yu-Min Kuo, Miao-Li County, TW;
Wen-Hsien Su, Miao-Li County, TW;
Shang-Hsuang Wu, Miao-Li County, TW;
Coretronic Corporation, Hsinchu, TW;
Abstract
An optical engine includes a light source, an optical main body and a projection lens. The optical main body includes a reflective light valve, a case, a first heat-dissipating device and a heat-insulating device. The reflective light valve reflects the incident light beam to form an image light beam or a dumped light beam that is not projected into the projection lens. The case encloses the light paths of the incident light beam, the image light beam and the dumped light beam. An opening is on the case for the dumped light beam to be projected into. A first heat-dissipating device is fixed on the case and covers the opening for removing the heat generated by the dumped light beam. A heat-insulating device is disposed between the first heat-dissipating device and the case for preventing the heat conduction between the first heat-dissipating device and the case.